implementation of the built in schema procedure

neo4j · Sep 15, 2016 · 80277e5 · 80277e5
1 parent e42a3e2
commit 80277e5
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diff --git a/community/kernel/src/main/java/org/neo4j/kernel/builtinprocs/BuiltInProcedures.java b/community/kernel/src/main/java/org/neo4j/kernel/builtinprocs/BuiltInProcedures.java
@@ -41,6 +41,7 @@
 import org.neo4j.kernel.api.proc.UserFunctionSignature;
 import org.neo4j.kernel.impl.api.TokenAccess;
 import org.neo4j.kernel.impl.api.index.IndexingService;
+import org.neo4j.kernel.internal.GraphDatabaseAPI;
 import org.neo4j.procedure.Context;
 import org.neo4j.procedure.Description;
 import org.neo4j.procedure.Name;
@@ -59,6 +60,9 @@ public class BuiltInProcedures
     @Context
     public DependencyResolver resolver;
 
+    @Context
+    public GraphDatabaseAPI graphDatabaseAPI;
+
     @Description( "List all labels in the database." )
     @Procedure( name = "db.labels", mode = READ )
     public Stream<LabelResult> listLabels()
@@ -157,6 +161,13 @@ public void resampleOutdatedIndexes()
         }
     }
 
+    @Description( "Show the schema of the data." )
+    @Procedure(name = "db.schema", mode = READ)
+    public Stream<SchemaProcedure.GraphResult> metaGraph() throws ProcedureException
+    {
+        return Stream.of(new SchemaProcedure(graphDatabaseAPI, tx).buildSchemaGraph());
+    }
+
     @Description( "List all constraints in the database." )
     @Procedure( name = "db.constraints", mode = READ )
     public Stream<ConstraintResult> listConstraints()